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Watercooling 2x GTX690 - Page 7

post #61 of 128
Thread Starter 
Quote:
Originally Posted by tsm106 View Post

Switftech is not readily available in euro and that's sucks for you. But if it were me, I would not be buying two regular DDC pumps heck no. I would bite the bullet and get the 35x2 it's the way to go on big builds.

I assume i would only need one of these right? i dont know anything about watercooling yet so that graph means nothing to me but i will guess that higher = better so yeah that definately looks like the best thing to do.
i will look around to see if it possible to get it somewhere in europe before i buy the one from US
what does the heatsink do? does it just cool it better like a heatsink normally does? or does it have some other use in wc
Edited by Xotic - 8/14/12 at 11:00am
post #62 of 128
Quote:
Originally Posted by Xotic View Post

I assume i would only need one of these right? i dont know anything about watercooling yet so that graph means nothing to me but i will guess that higher = better so yeah that definately looks like the best thing to do.
i will look around to see if it possible to get it somewhere in europe before i buy the one from US
what does the heatsink do? does it just cool it better like a heatsink normally does? or does it have some other use in wc

I really dont like the DDC 3.25 (ie mcp 35x) as it puts out a lot more heat the the ddc 3.2 (blue impeller).

Watercoolinguk.co.uk has the 3.2, A couple of these would be ideal. If you're going with the 35x, make sure they have some air flow.
post #63 of 128
Quote:
Originally Posted by Xotic View Post

I assume i would only need one of these right? i dont know anything about watercooling yet so that graph means nothing to me but i will guess that higher = better so yeah that definately looks like the best thing to do.
i will look around to see if it possible to get it somewhere in europe before i buy the one from US
what does the heatsink do? does it just cool it better like a heatsink normally does? or does it have some other use in wc


One will do.

Quote:
Originally Posted by wermad View Post

I really dont like the DDC 3.25 (ie mcp 35x) as it puts out a lot more heat the the ddc 3.2 (blue impeller).
Watercoolinguk.co.uk has the 3.2, A couple of these would be ideal. If you're going with the 35x, make sure they have some air flow.


That's not true. All DDC3's put out heat, not just the 35x. The 35x actually puts out less heat because of it's PWM in daily idle use where as a regular DDC3 will be running 100% all the time unmodified.


And as far as the heat goes, the heat is outside the loop and not into the loop, just the way I like it. Also, I doubt he will have air flow issues, look at the man's case! Getting some heatsinks or just putting some on according to Martin's heatscope article will work too.
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post #64 of 128
Quote:
Originally Posted by tsm106 View Post

One will do.
That's not true. All DDC3's put out heat, not just the 35x. The 35x actually puts out less heat because of it's PWM in daily idle use where as a regular DDC3 will be running 100% all the time unmodified.
And as far as the heat goes, the heat is outside the loop and not into the loop, just the way I like it. Also, I doubt he will have air flow issues, look at the man's case! Getting some heatsinks or just putting some on according to Martin's heatscope article will work too.

I heard otherwise, why are there heatsinks for the 35x biggrin.gif??? We discussed this on the water thread quite a few times (didn't see you in either discussion), the 3.25 is a bit more hot than the 3.2 that's why I don't recommend it. Most ppl wont use pwm on the pump tbh. Other than that, since he's got a pedestal, go for a couple of tricked out D5 or the tried and true 3.2. With the money you save versus the 3.25, get a dual top to connect either the two ddc(s) or d5(s).
Edited by wermad - 8/14/12 at 1:18pm
post #65 of 128
btw

As the loop becomes more complex (and expensive), two would be ideal. But one can do the job fine thumb.gif. Other than that, if you like to have redundancy, here's another reason to get two pumps.
post #66 of 128
Quote:
Originally Posted by wermad View Post

I heard otherwise, why are there heatsinks for the 35x biggrin.gif??? We discussed on the water thread quite a few times (didn't see you in either discussion), the 3.25 is a bit more hot than the 3.2 that's why I don't recommend it. Most ppl wont use pwm on the pump tbh. Other than that, since he's got a pedestal, go for a couple of tricked out D5 or the tried and true 3.2. With the money you save versus the 3.25, get a dual top to connect either the two ddc(s) or d5(s).

Do you own a 3.25 and a 35x? Have you used both? I've used both. I'm not in whatever discussion yer referring to because I probably didn't see it, but in this one and I've owned and used both. They all get hot lol. The heatsink isn't needed if you have decent flow. I use heatsinks cuz 35 bucks is nothing to me times two. And I'm of the mindset that hell I've already gone that far, what's a lil bling bling on my pump that no one will see, and if yer noticing you'll see the bottom 140mm fan right under the pumps.


Btw, regular DDCs burn out from heat too.
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post #67 of 128
Quote:
Originally Posted by tsm106 View Post

Do you own a 3.25 and a 35x? Have you used both? I've used both. I'm not in whatever discussion yer referring to because I probably didn't see it, but in this one and I've owned and used both. They all get hot lol. The heatsink isn't needed if you have decent flow. I use heatsinks cuz 35 bucks is nothing to me times two. And I'm of the mindset that hell I've already gone that far, what's a lil bling bling on my pump that no one will see, and if yer noticing you'll see the bottom 140mm fan right under the pumps.

I used the 3.25 and not the x. I was ready to buy it but this is why I didn't. too many ppl were saying it gets too hot. We've discussed in the water thread a few times. If you feel different, than that is your judgement based on your experience. I'm absorbing what others have said from their experience. Like I said, the 35x will be hotter based on what I've told by other owners on the water thread. Any DDC really gets hot in confined places like a bay/pump/res (discussed as well), and really, why would you want pwm on pump unless you're trying to control its power to mediate its heat, ? Both my DDc 3.2 and D5 will get a bit hot in a bay/res. Out in the open, they're fine. So again, why pay a lot more for slightly more performance, pwm which most likely op will never use, and more heat?

The 3.2 is great pump, so is the D5 (a little bit noisier for my taste). I don't see the added benefit in the higher cost of the 3.25.


I recommend what I know works and what I've been told works. If someone said their 3.25 farts magic fairies, that's fine. But based on the info I accumulate by partaking in the water cooling thread, I put that use. I know there are those who know a lot more than me and when they prove me wrong, I welcome the knowledge.


And honestly, lets both try to keep it more conventional for op. I don't want him ending up with parts that he will have reservations about in the future.
post #68 of 128
Thread Starter 
Well it is half the price to go with 2 separate pumps than to get the mcp35x2 one which i also found i can get in europe with 1-2 day shipping:


and i need to remind everyone, i do not have an unlimited budget, far from it, after getting the parts for my case i went down to £808 total, then import VAT puts me down to about £745.
then today i had to replace my RAM which puts me down to £580.
i will be getting a refund from the other ram which died which will back me up to £700.
My parents will lend me the remaining money that i need if i cannot afford it and give them the puppy eyes... and i know, judging from the prices i have put together in the shopping cart that i am going to need to borrow money from them, but i would like to borrow as little as i can.
So, if i can save money i will, but i know that i cannot cheap out on things when it comes to watercooling. If i need that dual pump with the heatsink, i will get it, but if i dont need it, it would save me ALOT.

I still had 2 questions from an earlier post if anyone can answer them:
Quote:
Originally Posted by Xotic View Post

i just watched this video:
http://www.youtube.com/watch?v=BXSMxnLYOd0
and now i have 2 questions:
1. He is using 2 power suplies, i have the ax1200 the same as him, does that mean i will need another psu for this build?
2. He is cooling 3 cards in SLI and his CPU, yet as far as i can tell, only using 2 radiators. will i be able to get away with 2 rads instead of 3 if i am using the monsta rads? then i could put them all inside the pedestal and have no rads inside the actual case.
EDIT: oops sorry, did not realise i double posted

Thank you everyone for the continued help
post #69 of 128
Quote:
Originally Posted by wermad View Post

I used the 3.25 and not the x. I was ready to buy it but this is why I didn't. too many ppl were saying it gets too hot. We've discussed in the water thread a few times. If you feel different, than that is your judgement based on your experience. I'm absorbing what others have said from their experience. Like I said, the 35x will be hotter based on what I've told by other owners on the water thread. Any DDC really gets hot in confined places like a bay/pump/res (discussed as well), and really, why would you want pwm on pump unless you're trying to control its power to mediate its heat, ? Both my DDc 3.2 and D5 will get a bit hot in a bay/res. Out in the open, they're fine. So again, why pay a lot more for slightly more performance, pwm which most likely op will never use, and more heat?
The 3.2 is great pump, so is the D5 (a little bit noisier for my taste). I don't see the added benefit in the higher cost of the 3.25.
I recommend what I know works and what I've been told works. If someone said their 3.25 farts magic fairies, that's fine. But based on the info I accumulate by partaking in the water cooling thread, I put that use. I know there are those who know a lot more than me and when they prove me wrong, I welcome the knowledge.
And honestly, lets both try to keep it more conventional for op. I don't want him ending up with parts that he will have reservations about in the future.

Read Martin's article. THE 3.2 gets HOT, period end of discussion. Saying that a 35x with PWM (that runs at 20% speed most of it's life) gets hotter than a 3.2 that runs 100% speed 24/7 is ridiculous.

http://martinsliquidlab.org/2011/05/30/ddc3-2-pump-heat-scoping/
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post #70 of 128
Yes, he is using two PSU's and I use two as well. I had so many components that I needed extra connections.
He has two Rads up top and at least one in the pedestal.

EDIT: You can also run 2 D-5's in serial and mount them in the pedestal. I had 4 in mine with two Rads.
Edited by theseekeroffun - 8/14/12 at 1:47pm
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